Add examples

examples/echo.py

@@ -0,0 +1,17 @@
+from xbotlib import Bot
+
+
+class EchoBot(Bot):
+    """SYN/ACK bot for testing things work.
+
+    Just direct message the bot and see if you get back what you sent. If so,
+    then you know your setup is working.
+
+    """
+
+    def react(self, message):
+        """Send back what we get."""
+        self.reply(to=message.sender, body=message.body)
+
+
+EchoBot()